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946261-9701
6-SLOT
CHASSIS INTERRUPT
JUMPER PLUG
LOCATION 2Pl
2P1
3Pl
3Pl
4Pl
4Pl
5P1
5Pl
6Pl
6Pl
(A) 138673
1A1J3
0
[R]
6P2
0
[!]
6P2
0
[E]
5P2
0 0
5P2
0 0
4P2
U
U
l..EVEL 1
4P2
0 0
2
3P2
0 0
3
3P2
0 0
4
2P2
DOD
5
LOCATION 2 P2
NOTE:
r:1
PINS NOT INSTALLED IN
I!J
BACKPLANE PI N 'HEADER
JUMPER WIRE
EDGE VIEW
0 0
0 0
0
0
0
0
0 0
0 0
0 0
0 0
0 0
0 0
Figure 2-28. 6-Slot Chassis InterrUpt Jumper Plugs
1 AI J2
6
7
8
9
10
11
12
13
14
LEVEL 15
2.4.3.4 Interrupt Connections for 17-Slot Chassis. Interrupt lines in the 17-s10t chassis are wired to
a 70-pin connector accessible from the rear of the chassis. A jumper assembly plugs into the connec-
tor to make the interrupt level to chassis slot connections. This assembly appears at the lower right
of the chassis backplane as shown in Figure 2-25.
The jumper assembly is a PWB because it should not be necessary to alter the standard interrupt
level assignments. If it should become necessary to change interrupt levels, the customer may pur-
chase a special variable jumper assembly or modify the etch on the fixed jumper card. Figure 2-30
shows the pin assignments on the interrupt connector.
To gain access to the interrupt jumper assembly, open the chassis rear access cover as described in
paragraph 2.4.3.2, steps 1, 2, 5, and 6. Observe all cautions and warnings.
Remove the interrupt jumper assembly by gently rocking it up and down to loosen the connector
and then pulling straight back.
When reinstalling the assembly, make sure the pins are properly aligned before applying mating
force.
CAUTION
It is possible to install the interrupt jumper assembly upside down.
Note that pin 1 is at the bottom of the interrupt connector.
2-39
Digital Systems Division
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